'Descendant' in the Bible

"LORD God of our ancestors, you are the God who lives in heaven, are you not? You rule over all the kingdoms of the nations, don't you? In your own hands you grasp both strength and power, don't you? As a result, no one can oppose you, can they? You are our God, who expelled the former inhabitants of this land right in front of our people Israel, aren't you? Then you gave it to your friend Abraham's descendant forever, didn't you?

Then the Spirit of the LORD came upon Zechariah's son Jahaziel, the son of Benaiah, the son of Jeiel, the son of Mattaniah, a descendant of Levi from the descendants of Asaph in the middle of the assembly, and he said:

Because there weren't enough priests, they were unable to prepare all the burnt offerings until other priests came forward after having consecrated themselves, so their descendant of Levi relatives assisted them until the services were complete. (The descendants of Levi had been more conscientious in consecrating themselves than had been the priests.)

They faithfully brought in the gifts, tithes, and consecrated materials, and Conaniah the descendant of Levi was placed in charge of them. His brother Shimei was second in command,

Imnah the descendant of Levi's son Kore, keeper of the eastern gate, was in charge of voluntary offerings to God, apportioning contributions for the LORD and the most holy things.

The singers, as descendants of Asaph, remained at their stations as David, Asaph, Heman, and the king's seer Jeduthun required, and the gatekeepers did not have to leave their posts because their descendant of Levi relatives prepared the Passover for them.